package week4;

/**
 * Created by dell on 2017/3/16.
 */
public class Circle extends GeometricObject{
    private double radius;

    public Circle() {
    }
    public Circle(double radius) {
        this.radius = radius;
    }
    public double getRadius() {
        return radius;
    }
    public void setRadius(double radius) {
        this.radius = radius;
    }
    public double getArea() {
        return radius * radius * Math.PI;
    }
    public double getDiameter() {
        return 2 * radius;
    }
    public double getPerimeter() {
        return 2 * radius * Math.PI;
    }
    public void printCircle() {
        System.out.println("The circle is created " + getDateCreated() + " and the radius is " + radius);
    }
}
